Home / 11,018.31-15,205.05-6,172.26

Finding the Fourth Proportional to 11,018.31, 15,205.05 and 6,172.26

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Solution

The fourth proportional to 11,018.31, 15,205.05 and 6,172.26 is: 8,517.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,018.31 : 15,205.05 = 6,172.26 : x
  2. Step 2: Convert to fraction form
    11,018.31/15,205.05 = 6,172.26/x
  3. Step 3: Cross multiply
    11,018.31x = 15,205.05 × 6,172.26
  4. Step 4: Simplify right side
    11,018.31x = 93,849,521.91
  5. Step 5: Solve for x
    x = 93,849,521.91/11,018.31
  6. Step 6: Final answer
    x = 8,517.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.